The Experts below are selected from a list of 34710 Experts worldwide ranked by ideXlab platform
Elena Kokoliou - One of the best experts on this subject based on the ideXlab platform.
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BIC shaver Thermoplastic Elastomers
internal, 2017Co-Authors: Elena KokoliouAbstract:and the Comfort 3 Advance handles are produced by two different TPE materials that based on the suppliers specifications, both have a Shore A hardness value
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Edge Hard Coatings
internal, 2017Co-Authors: Elena KokoliouAbstract:be implemented in this category is TiN, CrN, TiBN, CN, TiAlN, AlCrN etc. In this case critical role in order to achieve the optimum hardness value is the nitrogen concentration. Although this category of materials can reach high hardness values their implementation in an industrial scale is not an easy adaptable process
H. Ashrafi - One of the best experts on this subject based on the ideXlab platform.
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Synthesis and characterization of mullite–zirconia nanostructured composite by combined mechanical activation and reaction sintering
Advanced Powder Technology, 2015Co-Authors: H. Ashrafi, Rahmatollah Emadi, R. Zamani ForoushaniAbstract:Abstract The objective of present study was to produce mullite–zirconia nanostructured composite by mechanical activation of zircon–alumina powder mixture followed by reaction sintering. The results showed that mechanical activation up to 60 h led to no phase change. Complete formation of mullite–zirconia composite was observed after 60 h of mechanical activation and subsequent reaction sintering at 1400 °C for 2 h. This temperature is about 200–250 °C lower than the temperatures commonly used in the reaction sintering of zircon–alumina powder mixture. Density measurements showed that the relative density of green bodies was ∼78%, which increased to Values above 90% after reaction sintering. It was also observed that the relative density of reaction sintered samples increased with an increase in the mechanical activation time. The produced composite showed a Hardness Value of 11.1 GPa, which is comparable with the Hardness Value of mullite–zirconia composites obtained by other methods.
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synthesis and characterization of mullite zirconia nanostructured composite by combined mechanical activation and reaction sintering
Advanced Powder Technology, 2015Co-Authors: H. Ashrafi, Rahmatollah Emadi, Zamani R ForoushaniAbstract:Abstract The objective of present study was to produce mullite–zirconia nanostructured composite by mechanical activation of zircon–alumina powder mixture followed by reaction sintering. The results showed that mechanical activation up to 60 h led to no phase change. Complete formation of mullite–zirconia composite was observed after 60 h of mechanical activation and subsequent reaction sintering at 1400 °C for 2 h. This temperature is about 200–250 °C lower than the temperatures commonly used in the reaction sintering of zircon–alumina powder mixture. Density measurements showed that the relative density of green bodies was ∼78%, which increased to Values above 90% after reaction sintering. It was also observed that the relative density of reaction sintered samples increased with an increase in the mechanical activation time. The produced composite showed a Hardness Value of 11.1 GPa, which is comparable with the Hardness Value of mullite–zirconia composites obtained by other methods.
D H Kwon - One of the best experts on this subject based on the ideXlab platform.
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wear behaviors of bulk metallic glass alloy and hardened steel having the same Hardness Value
Journal of Alloys and Compounds, 2012Co-Authors: D H Kwon, K M Lee, E S Park, Hyunjong Kim, J C Bae, M Y HuhAbstract:Abstract The wear behaviors of the Zr-based BMG alloy and hardened steel were examined using a pin-on-disc type testing machine with the same pin and disc materials. Steel with the same Hardness as the BMG alloy was prepared to exclude the effect of Hardness on the wear behaviors. The adhesive wear governs the wear of a steel-pin against a steel-disc. Limited plastic deformation of the BMG alloy leads to the formation of flake-like BMG debris and their size depends on the level of applied stress.
R. Zamani Foroushani - One of the best experts on this subject based on the ideXlab platform.
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Synthesis and characterization of mullite–zirconia nanostructured composite by combined mechanical activation and reaction sintering
Advanced Powder Technology, 2015Co-Authors: H. Ashrafi, Rahmatollah Emadi, R. Zamani ForoushaniAbstract:Abstract The objective of present study was to produce mullite–zirconia nanostructured composite by mechanical activation of zircon–alumina powder mixture followed by reaction sintering. The results showed that mechanical activation up to 60 h led to no phase change. Complete formation of mullite–zirconia composite was observed after 60 h of mechanical activation and subsequent reaction sintering at 1400 °C for 2 h. This temperature is about 200–250 °C lower than the temperatures commonly used in the reaction sintering of zircon–alumina powder mixture. Density measurements showed that the relative density of green bodies was ∼78%, which increased to Values above 90% after reaction sintering. It was also observed that the relative density of reaction sintered samples increased with an increase in the mechanical activation time. The produced composite showed a Hardness Value of 11.1 GPa, which is comparable with the Hardness Value of mullite–zirconia composites obtained by other methods.
Zamani R Foroushani - One of the best experts on this subject based on the ideXlab platform.
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synthesis and characterization of mullite zirconia nanostructured composite by combined mechanical activation and reaction sintering
Advanced Powder Technology, 2015Co-Authors: H. Ashrafi, Rahmatollah Emadi, Zamani R ForoushaniAbstract:Abstract The objective of present study was to produce mullite–zirconia nanostructured composite by mechanical activation of zircon–alumina powder mixture followed by reaction sintering. The results showed that mechanical activation up to 60 h led to no phase change. Complete formation of mullite–zirconia composite was observed after 60 h of mechanical activation and subsequent reaction sintering at 1400 °C for 2 h. This temperature is about 200–250 °C lower than the temperatures commonly used in the reaction sintering of zircon–alumina powder mixture. Density measurements showed that the relative density of green bodies was ∼78%, which increased to Values above 90% after reaction sintering. It was also observed that the relative density of reaction sintered samples increased with an increase in the mechanical activation time. The produced composite showed a Hardness Value of 11.1 GPa, which is comparable with the Hardness Value of mullite–zirconia composites obtained by other methods.
